Sand-blast machine.



C. F. MOTZ.

rfANn BLAST ummm.

APPLIOATIOI FILED HOV. 10, 1909,

Patented Apr. 19, 1910.

n :amsn-num 1.

me. a 241 C. F. MOTZ.

BAND BLAST MACHINE.

nrLxoArlol num lov.1o,1eo9.

955,468. Patented Apr. 19, 1910.

2 BHEETB-8HEET 2.

N N waTNEsSs. mvswron.

UNITED STATES :PATENT OFFICE.

CHARLES l'. XOTZ, 0l ICON TOW NBHIP, BRAVI! COUNTY, PENNSYLVANIA, MIGNON, BY IESNE ABSIGJIINTB, TC PIRE GLOBE COIPANY, 0l' NEW YORK, N. Y., L

GOBPORATION 0l' NEW JERSEY.

8. LND-BLAST HACHIN E.

mms mais :am Patented Apr. 1o, 1910.`

maman aie: november .o, uoc. sei-ui n. 527,213.

1b al1 whom'i't may concem:

Be it known that I, Cunas l. Morz, a. resident o5 Moon township, in the county of Beaver and State of Peni lvani i, have invented i. new and useful'. m rtveine'nt in Saud-.Blast Machines; and I o hereby declare the followin to be a full, clear, and exact description t ereof.

My invention relates to saiit'.blast niachilies.

.The objeei of my in'veution i: to provide a machine in which patterns or lesigns may be quickly aud accurately proiuced upon articles of glarsware by means of sand blasting, the device being .simple iii construction and capable ot bei: g operated without the. eiiiployuient of skilled labor.

o these eues my inveinioi ccmnises, generally stated, a suitable riceptaci containingl the sand. iu air-pipe, a :and-.pipe minniunicatfng ivitl.. sait'. rei eptacle and with the air-pipe, whereby :he sand is directed will` repiiicd force. against the article to be tiratezl, and nuaus for supportzug thc article in connection with-the pattern .so that the article. aud pattern may be moved in iosition with reference to tl'e sand-blast to t irect the blast unii'onnl) ind with accura. upon the entire surface lo be frosted.

Re .eri-ing to the accompanying drawings, Figure l is a front elevation of niy improved macliii-e; Fig. 2 .fs a vertical section; Fig. 3 is a cross section ou the line (i3-3) Fig. l; Fig. 4 is au enl'irgfcd sectio'i of the diaphragm `ind the. patern late; Fig. 5 is a plan vien of saine partly 'ln-r ken away.

In thc i'irawiucs, the numeral 2 designates 1 suitable stanti er sup )orc for the sand receptacle 3 having a conical bo'ttoui 4. Sccu"ed to tht up|.er e id of the receptacle 3 is the hood i, which .uis the opeiiiu f 6. A flange 7 is secured to the iiuier wal of the recel lacie 3 and lori is :v sup )ort for the cover 8. The cover Sl is provii cd with flieopeiiii g l0 and thi- .siuiilar openings 11 nrranged'at intervals :ii-.uiid said cover.

A di. phragui l.' of canvas or otliei' suit;- ahlc ina erizil is secured by the nails or other fastenin.r devices 1J to the cover 8 :it its outer edic and the inner edge of said diaphragm i: secu ed to the movable support or frame l nl ich rests upon the cover 8. The pattei'i 1I is :il-.o secured to the supe for port 14. This pattern-platez in the particuar instance illustrated, consists of ine metal plate with a. suitable design therein by o nings cnt in the plate and as I have ilustrated my invention in connection with the sand-blastin" of a shade having a bellshape with tlatsides, the support 14 and the pattern-plate 15 have been desi ned for the sand-blasting of such a shade. ccordingly the lower portion of the shade is supported upon the pattern-plate 15 and the upper eud o the s ade rests upon the support 14. Stri s of rubber 16, or other suitable materia are secured to the frame 14, said strips being arranged to conform to the shape 'of the shade so that the shade, when 'adjusted in position ou the frame, will t .pipc 20. 'llie air-pipe 20 is connected up to the suitable supply-pipe 21 leading from an air compressor or fau. A valve 22 controls the supply of air to the nozzle-l ipe 19 and said valve is operated by the spring actuated treiidle 23.

pi pc 2l leading from the air-pi is connected to the exhaust-pipe leading from the hood 5 to carry olf the dust, said exhaust pipe 25 being connected to the ipe 26. The pipe 26 is connected to the en argement 27 which is connected by the pipe 28 to the receptacle 3. The pipe 20 is connected to the air-pipe 20 and t ic upper end of said pi 2t) asses throu li an opening in the hood 5, and is bent to t irect the air on the article to lic o ici'ulcd oli.

ll ieu in improve.' and-blast machine is in use the s mdc or other article to be frosted, is inserted within the space bound by the rubber strips 16 ou the iiioviible support; 14 with the lower portion of said shade resting in contact with the pattern-plate l5. Tho operator with his foot upon the trcadle 23 and holding the shade down iii position-upon the support 14 operates the trcadle 23 to o ien the valve 2. and admit air to the noz- '/.ic-pipc lll. 'llic :idiiiissioii of :iii' l0 the nozzle pipe 1S acts to snel. or draw the sand up through the .san-l pipe 1T and this sand is with high velocity from the noz ale-pipe and is u through the opening 1 in the cover 8. e'opeiator with his hand upon the shade is able to move the support 1 over the cover 8, the flexible diaphragm 12 permitting of movements in all directions, so that the face of the shade exposed to the sand-blaat is moved around in positionto have the sand-blast directed against all portions of said face, so that all parts of shade are brought directly in the path of the sand-blast. The pattern plate prom parts of tltia ahaaldedfrom the san an co uen e eaign or pattern roduced u@ the article ia b ht out by rp and c early defined linea. Yny

' from the operation within the dust a hood 5 is drawn oil by the suction-pipe 26 so that this dust is not inhaled b the operator, and the action of the pipe 2 blows this dust away from the'article, and it is quickly drawn u by the pipe 25. The enlar ment or cham r 27 acts to collect the san which passes u 'thro the pipes 26 and 28 and said san falls lr into the lowerend of the receptacle so that waste is prevented. When one side of the shade has been properly treated, the operator with his foot upon the treadle 23 closes the valve 22 to shut of the air, and then the position of .theshadesoastobringanother faceinlpoaition to be acted on by the sand-blast, w

theoperstion described is repeated In this manner provide a machine in which the aandblast is directed through a comperativel small openin in the cover and the arti e opera on is freely movable in all directions so as 'to subject it to the action of the blast equally iat all points to obtain a uniform frosting of the shade and at the same time a design can be applied to the shade with great accuracy and rapidity, the whole operation requiring but a few seconds. No skill is uired on the part of the o rntor as it is on a question of the handlieng of the shade in bringing it into proper position on the ttern frame, and. the moving of the mova le support so as to cames expose all portions of the shade to the action of the blast.

What I claim is:

1. In a sand-blast machine, combination of a suitable receptacle, an air-pi ,'a sandpipe connected thereto, a cover lfieir said receptacle having an opening in line with the blast, and a movable su port on said cover to receive the article to operated on'.

2. In a sand-blast machine, combination of a suitable receptacle, an air-pi a landpipe connected thereto, a cover or said receptacle having an opening therein in line with the blast, a movable support on said cover to receive the article to be operated upon, and a flexible diaphragm connecting said cover and said support.

8. In a sand-blastV machine, combination of a suitable receptacle, an air-pi a sandpipe connected thereto, a cover or said re-l ceptacle having un opening therein in line with the blast, a movable support on mid cover to receive the article to be operated on, and a pattern carried by said movable suport p 4. In a sand-blast machine, combination of a suitable receptacle, an air-pi .'a :andpipe connected thereto, a cover or said re- .ce )Lacie having an o ning therein, a movablle sup rt on sai cover to receive the article to operated on,aflexib le dia :.w connecting said support with mi com, and cushioning strips on said support within which the article iests.

5. In a sand-blast machine, combination with suitable receptacle, an air-pipe, a Banldpipe connected thereto, a cover for said rece itacle havin" an opening therein in line with the sand-lhlast, a movable support on said cover to it-ceive the article to be operated on, a hood over said cover and an exhuust pipe connected u to said hood.

In testimony where() I the said Cnam F. More have hereunto set m hand.

CHARLS F. MOTZ. Witnesses:

Geo. F. Wann; Emmer Focal.. 

